MPD: Data Fields - Variables

MPD 0.20.15

### - f -

- factor : FloatToIntegerSampleConvert< F, Traits > , IntegerToFloatSampleConvert< F, Traits >
- fail_timer : AudioOutput
- failed : Mixer
- fd : FileDescriptor
- file_decode : DecoderPlugin
- filter : DatabaseSelection
- filter_audio_format : AudioOutput
- finish : ArchivePlugin , AudioOutputPlugin , DecoderPlugin , InputPlugin , playlist_plugin
- FLAG_REQUIRE_STORAGE : DatabasePlugin
- flags : DatabasePlugin
- fold_case : SongFilter , SongFilter::Item
- format : AudioFormat
- friendlyName : UPnPDevice